Sargent Art delivers superior quality crayons for school and home use. Non-smudging, non-flaking and tested to provide true coverage that does not streak or pile. Choose between 8 classic colours, 16 brilliant colours, or the most popular assortment of 24. There's also a 200 piece class pack for classes and groups! AP certified non-toxic. Conforms to ASTM D-4236. Each crayon measures 93mm x 8mm.